When all the suns die out?

Question

So all the stars will eventually expire and turn into black holes, which have very extensive lifespans and gobble up anything. Will the universe be eventually empty?

Answer 1

not all stars turn in to black holes; our star will turn into a red giant them a white dwarf then black as ir dies ;  it seemunlikelyy the the universe will be gobbled up by black hole don't worry

Answer 2

If the Big Bang was large enough to fling all the star systems permanently away from each other, then yes, the Universe will die.

If there is enough matter to pull it all together in a "Big Crunch", there could be another Big Bang and a new Universe.

Answer 3

No, not all stars turn into black holes. The only known stars that turn into black holes are super massive stars. Their gravitational pull is so strong that they. They collapse under their own weight, forming a "neutron star" which is only about 10 miles in diameter. It is so dense that a teaspoon of the matter would weigh tons. Red super giants are the most common. Blue hyper giants probably don't because they are too hot to for gravity to keep them together completely. Our sun isn't close to being massive enough to form any sort of black hole... it will simply burn out.

And although stars are constantly dying, new stars are also constantly being formed. The universe has a balancing act when it comes to stars formation and stars burning out. It will be a while before the stars start to go extinct.

A black hole's life span depends on its mass. Because of Hawking radiation, black holes constantly loose matter, and thus get less and less massive. A small black hole only lasts a couple seconds. Super massive black holes last for a long time as long as they get fed every few hundred million years in nice portions.

But its not like there aren't any super massive black holes lurking around. There is a super massive black hole in the galactic center of almost every observed spiral galaxy, including our own. But the Earth is too far away from the galactic center to be affected.

The theory that the universe will be empty at some point is a tricky one, but interesting none the less. Supposedly, dark matter is supposed to build up and conquer the universe so to speak. Its a lot more complex than that, but the "big crunch" and "big freeze" scenarios are a whole different answer.

Answer 4

it will never be so, that the universe will once be empty. as stars are dying, they are exploding to supernova caussing a mass ejections of matter. this matter circulates around the space and if there are enough of it clustered togeather, it may form a nebula --- the birthplace of stars. stars are being created, and destroyed.

speaking of black holes, a very very massive star may only form a black hole, not just any of them. and blackholes has nothing to do with the end of the universe....

Answer 5

I've read a couple of the total "end of the universe" conjectures.  The supermassive black holes at the centers of the galaxies will eventually consume their entire galaxy.  Gravity will crush the local groups of galaxies together (we're seeing that now - Andromed and the Milkyway will merge in a few billion years), and so eons from now, there will be one super-supermassive black hole in place of the 50 or so galaxies in *our* "local group,"  to match the same kind of black holes formed by the other groups out there.  If the Big Bang was big *enough*, those black holes will continue to fly apart, eventually evaporating through hawking radiation, leaving nothing but space.

If the Big Bang didn't have the punch to perpetually keep the masses apart, then, eventually, all those super-supermassive black holes will combing back into one.  

Maybe to start *another* Big Bang...?  

Answer 6

No. I dont think so. Stars are being MADE also as well as dying. The Universe is so vast the black holes should not affect distant stars. Also a dying star does not always turn into a black hole. They can turn into white dwarves or brown dwarves

Answer 7

1. The Yunivers is expanding.  Look like it will expand forever.

Sientists thank the rate av expand get bigger, but not shuer kauz

not shuer the wae em get distanses is good nuff.

2. nu stars still form now.  Look like will keep duit many bilyun yeers yet.

Brown drawf spozed tu liv bout 20 bilyun yeers.  Iz that long nuf?

Answer 8

I suggest finding a copy of "The fate of the Universe" Astronomy Dec 1985.  Its the best treatment of the heat death of the universe I've ever run across.  Its too old now to be on my EBSCO database except as a citation.   Ask your local librarian to get you a copy or visit a university.  This is a little old for most public libraries to still have.  

And to answer your question: yes, the universe eventually sort of dissolves into an ever-expanding submolecular cloud.  Even black holes have dissolved.  

However the heat death may not be our fate.  Cosmologists have long speculated about the fate of the universe. In the latest model, the universe instead ends with a Big Rip. Every galaxy, star, planet, molecule, and atom are torn asunder 21 billion years from today.  The cosmos killer in this scenario is dark energy, an invisible substance suspected of pervading the universe and exerting a force opposite to gravity's usual pull. As dark energy stretches space-time and pushes galaxies ever farther apart, it would create a diluted universe in which stargazers in the Milky Way billions of years from now would be too distant from other galaxies to view any of them. A billion years before the very end, dark energy, would strip apart clusters of galaxies. A few months before the end of time, the dark energy content of the empty space between Earth and the sun would overwhelm the sun's pull, and Earth would float off into space.

Answer 9

Not all stars become black holes. Our Sun for example will collapse into a white dwarf. In fact 97% of all the stars in our galaxy will become white dwarfs. Black holes are quite rare. White dwarfs are the used up remains of a star after it sheds its outer layers. White dwarfs do not produce energy internally like stars do so white dwarfs get progressively cooler. After a very long time the white dwarfs crystallize and ultimately (theoretically) become black dwarfs which happens when their temperature reaches the background temperature of space 3*K (no black dwarfs are thought to exist however because the universe isn't old enough). Bigger stars become Neutron stars which are like white dwarfs only their gravity is so intense the pressure at its core fuses protons and electrons into neutrons. Really big stars collapse into black hole which are so much mass in such a small space that not even light can escape it.

So, after a trillion or so years all that will be left in the universe are black dwarfs, neutron stars, and black holes. Over time the black dwarfs and neutron stars will decay into nothing. Even Black holes will evaporate via Hawking radiation into a cloud of subatomic particles spread across the universe. Since the expansion of space within our universe is accelerating by this time it will be unimaginably big in comparison to the already unimaginably big universe that exists today. The universe will just be a few subatomic particles spread over a nearly infinite space... this is know as the Heat Death of the universe.

If you are curious if the universe will stay like this or if something will happen afterwards you should ask about the Brane Theory.

Answer 10

Hmmmm, good question.

The universe is forever expanding, so I'm not sure

if everything will be sucked up by stars that become black holes.

Also not all stars become black holes, some will become neutron stars

which will not really do anything, and many will explode in supernovae

and the material left from the explosion will recreate a number of stars.

So the universe will never be filled with just black holes, but may become very abundant of them and more dangerous. The fate of a star depends entirely on their size.

Answer 11

Yeah

Answer 12

At this time the most accepted theory -- based on observational evidence -- the universe will expand "indefinitely," leading eventually to what's popularly called "the heat death of the universe." At some unimaginably distant time the very last proton will evaporate and the last tiny fraction of energy will fade away, leaving the universe as nothing more than an infinitely cold, empty void slowly continuing to expand.

Answer 13

n ot all stars turn into supernovas (which give birth to one type of black hole) and when stars die they throw out massive ammounts of material, that form new stars...

trillions x trillions of years from now, eventualy that process will end however...

the two main theories i know of that describe the end of the universe is the big rip and big crunch.. in the big rip space just keeps expanding forever eventually ripping everything apart at the sub atomic level so space is just litered with dust and that's it... since by now the acceleration is so great, it can't reform into planets, stars or anything...

in the big crunch space comes flying back in like a stretched rubber band back to the singularity, where it may give off a new big bang and everything is reborn.